# Will It Work Everywhere? Browser Support and @supports

Check whether a CSS feature works in your readers' browsers with Baseline and caniuse.com, then use it safely with fallbacks the cascade gives you for free, @supports, and progressive enhancement.

![Cheat sheet: Will It Work Everywhere? Browser Support and @supports](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/10/b0981829b0b64420beca60f8566178a5.webp)

- Category: CSS
- Level: Journeyman
- Tags: @supports, Baseline, Cascade, CSS, Progressive Enhancement, web-development
- Updated: November 1, 2026

Source: https://www.ask-codey.com/cheat-sheets/css-browser-support-cheat-sheet